there is a good chance he is serious, siblings often tell girlfriends or boyfriends terrible things that can make the gf or bf hate their bf or gf, there is no telling why some siblings do this but sometimes they do so it would be best not to take a chance.
I Think Think you should keep her away from your Boyfriend than because i had a sister like that before
It might be really hard if they really like eachother. First, think over why you want to break them up. Then watch them, do they really like eachother? Doing this might ruin you and your sister's relationship. Talk to your sis. Tell her what's bothering you before you break them up. Go from there.
That is your sister! Dont do that, you may think you love him, but what if something happens between you and the boyfriend, then you will loose your sister and the guy. trust me when i say dont do it. You will loose more than you gain.
Have lesbien sex with his sister it fun
Are you kidding relationships are serious because your boyfriend may think you are being mean or selfish or your girlfriend may think your not paying attion to them
Dump him before he dumps you.
I recently got a boyfriend and my sister has been hugging him and saying TO MY FACE that she likes him... I really need help on this... He told me that he'll love me forever but with my sister in the way... I don't think he will love me not my sister... Please help me...
well its not your fault if you think someone else is hot. we cant help it. but if he wants to break up because you think someone else is hot then he id a bad boyfriend and you should break up with him.
That you should never hit your boyfriend or to anyone, because it shows disrespects.
Ask him if your feeling is correct.
If you dont think he does, sit him down for a serious conversation and ask him
I wouldn't, but it is normal. I think you should give him a chance unless he is a jerk and treats your sister wrong.