Scorpio boyfriend and my Aquarian sister

So I promise I would make this short yet share enough info so that you amazing people can help me.

So, I am sitting in my (virtual) corner minding my own business and in walks this guy that i have know my whole life. We have been talking casually through the years and we both have found each other intellectually interesting. Only this time, he decides to mention that he finds me interesting and would like to pursue that to see what happens. Before he goes any further he mentions that a year ago he ran into my older sister and they had a few drinks and ended up at his place. He shares that they have not seen each other since but he was under the impression that my sister expected more out of the incident as she tried to pursue it but he was sure that it was not something he wanted. Said he wanted me to know this outright before anything happens so that we can both objectively choose whether to do this or not.

We continue talking for about 4 weeks- no sex, just a lot of great conversation. After 4 weeks we decide that we want to take this further, but I wanted to first talk to my sister, which he supported. I informed my sister and that is when all hell broke loose. Quick back story: I have always had a challenging relationship with my sister. It started out as innocent sibling rivalry cultivated by our parents and ballooned into an unhealthy competitive adult relationship. Like him, she's in her early 30s and I am close behind in my late 20s; she feels like I have always been 'lucky' and that it is not fair. Of course I have my own opinion on that (it's called hard work) an example being that even though she is really really smart-and was given better opportunities than all of my siblings, she chose not to finish college, while I struggled and got my graduate degree some years back. Anyway, she blew up (beyond my expectation) when I told her and went on to say that she has had feelings for him her whole life, called my mum to complain about it- the works! My mum kind of took my side because sadly, my sister has a tendency to throw tantrums when she doesn't get her way.

So, Scorpio and I managed to push through all that crazy going on in the background and have gone on and slept together, met each other's friends and very recently I saw his mother (whom I have remained quite close to and she loves me to bits) in the capacity as his girlfriend and she does not seem supportive about this. The main reason she gives is that Scorpio would be breaking up the relationship between my sister and I

So understandably, the situation is strained, I have reached a point where I am emotionally exhausted with all the hoops I am jumping. I love him and he loves me and I would like to believe we both have sensible heads on our shoulders. We are about 10 weeks in but we are both quite certain (as certain as anyone can be) that this is a relationship that we both want to pursue. I wanted an objective opinion, given the facts, what would you do in my shoes

This is a major girl code NO! You don't pursue some dude your girl friend / sister/ mother likes, slept with or dated. She's your sister and your relationship might damage the family dynamic. As soon as he mentioned that hook up, conversation should have been done.

who cares. screw your sister. enjoy your scorp

I'm surprised a Scorpio guy would move like this, considering how highly Scorps of ANY persuasion CHERISH family and loyalty AND understand family dynamics:
altho I appreciate his initial honesty with you...IF he is on the up and up here.
It's a head scratcher.
Are you sure he doesn't have a hidden motive- something involving your sister and their history you don't know about
😕
#revenge #hiddenagenda

Ew

You already made your choice.
Backtracking about why you shouldn't have done it is a moot point.

Just accept that there are going to be family members who have a problem with your relationship and move one.
If you two truly care for each other, you don't mind sucking the same penis your sister sucked, and are not doing this to spite your sister then I say go on with it and live your life.
In order to cut down on the stress levels if it were me I would put some distance between my family and I and work on my romantic relationship for a while.

Wow.

Well, I did say objective.

And yes, I guess I have already made my mind up. While I am not here looking for absolution from random people on the internet, I guess I needed to just let this out in some medium with people who do not know me, just for its own sake.

Thank you LunarMaiden (we share the same birthdate). I think the advice about keeping a distance is great.

On anything else, easy as it is to point fingers (I know I probably would have too, sitting on the other side of this), coming from someone who avoids conflict at all costs, walking away from this situation would have been the most easy out for me (something I have done once before with another one of my same sister's guys who randomly professed their undying love for me one evening). My knee-jerk reaction would have been to run and not even look back. Anyone who knows me would have expected it, hell, I have been known to run away for much less. Somehow, for some reason, I chose to stick around in this one and warped as it looks from the outside, when we shut out everything happening outside, I am really happy.

I am not staying wth this guy to be spiteful to my sister- deep down I hope we get to resolve this with time; strained as our relationship has been, I do want the best for her, always. I have no reason to believe that he is doing this out of spite or revenge for her either, he has shared some pretty dark secrets that torment him on a daily basis, and frankly, based on that situation, he does not have any reason to be spiteful towards my sister either.

I am chucking this to the fact that the world is not perfect, we all have an idea of what we would do, lines we will not cross, and then the world comes in and pulls a fast one on you and you suddenly realize that everything you believed in is coming to question...

I will end my random internet musings right here and thank all those who contributed (and/or judged) 🙂 Here's to hoping I figure out what's the best for everyone in this situation.

I will sound judgemental, and I mean it: who needs enemies with a sister like you? If this is not the first situation, where your sisters boyfriends/hook ups are declaring undying love for you or interest in you, than I think your behaviour is encouraging them...... no wonder your sister went ballistic

I wonder if OP lives in a small town.

You're a hoe. She should've beat your ass.

What a messed up situation. What you're doing is wrong. It will come back to haunt you without question.

Your lack of respect for blood and sense of entitlement carries a stench..

It won't last, and your sister will have the last laugh.

Honestly, I think this situation sucks. It's a dog eat dog situation. Me personally? Hurting my sister would outweigh sexing some guy 100% . She told you it wasn't ok. You should have listened.

Anyway, these situations have a way of bringing things back around it not so good of a way. Maybe even years later.

Ehh, never say never. I do agree with the other comments, yet no one is protected from situations where you are torn between two things.
Poster: it will suck either way because it looks like you'll either "sacrifice" your relationship with the guy or your relationship with the sister.