he's 26..., ... and i'm 17 Options

[Haruka]

ok i'll try to make this as short as i can, but i'll elaborate more later.

i've known this guy for about 3-4 years, but when i first met him i didn't ever think about going out with him. He lived in my house b/c he didn't have papers and needed some where to live until he had a job. Then he moved out after a few months and after that i went to live in another country for about 2 years.

My mother talked to him when he was living with me and it turns out he's my great grandmother's decendant so he's like barly my cousin or wut ever relation he would have with me, but i still call him my "cousin"

Ok so now i'm much older, more developed and he sees me again after 2 years and he thinks i'm hot and he thinks i'm so mature for my age and is pissed off that i'm not older. he tells me that he loves me and he wants to live with me, and take care of me

One day we had a get together of my bro's and my friends and at almost the end of the night when i was full of wine coolers and shots of singani (and so is he) he starts to kiss me, and i like it, i let him. but then i get scared, because my brother's right behind us with two other people looking at pics on the computer, thier backs to us (they can't see us)

We start making out a bit then we stop b/c my bro and his friends start talking to us again.

then about 2 weeks later we have another gathering of friends, we drink and at the end of the night i'm drunk like hell (more than i have ever been) and we make out some more, but he starts doing other non pg-13 things to me (but i'm still a virgin) and my brother calls me upstairs and i don't see him for the rest of the night.

ok so what's the problem, you ask?
he's 26 and i'm 17
and everyone thinks he's my "cousin"
and not to mention if he EVER breaks my heart, then my bro and his friends will beat the living @#$@# out of him (but they are just tooooo over protective)

any advice?