Sibling (Your partner's) fantasy?
 

Just had a strange dream last night.

For some reason, my girlfriend couldn't have sex with me anymore...so we came up with the idea of having her sister stand in.

Apparently during the sex though I started saying things like "I love you" so it erupted in a big issue. I don't really remember much else; just the settting, the sex, and my girlfriend getting pissed afterwards (not over the sex itself, but the feeling).

Now this morning I'm finding the idea of her sister as a huge turn on. I never really thought of her like this before, but has just suddenly came after that dream. Not that I would act on it or anything -- hell, her sister is thousands of miles away in another country (my girlfriend is an international student).

Anyone have an experience like this before? Not really having an attraction to your partner's sibling, but suddenly fantasizing a little about it and finding it a turn on?

That generally is what happens when a male finds a female attractive. Don't believe it's uncommon.

Yea, I have dreams about fucking girlfriend's sisters, friends, cousins, mothers, you name it, on a routine basis. All part of the territory that comes with having a penis.

I've had sex dreams about my SO's brother. It happens.

And, apparently, a vagina. :D

Well, the only siblings that ktspktsp and I have are his older sister, and the thought hasn't crossed my mind. One would think that it helps that she's a woman, and so am I, etc. However, last night I had my second dream (both recently) about having sex with some of my best (girl)friends... and damn, that was freaking weird. It's not every day that I orgasm in my sleep about people who were in our wedding, you know? I really don't know what my brain is up to sometimes... but I guess it processes things in strange ways. Go figure. I think it's really just human nature.

I've had a few dreams about fuckin' my girlfriend's best friend. She doesn't have a sister.

I've met the siblings. They're sweet, but no. It's just too weird for me.

Nope. I do believe I picked the best apple on that tree.

Dreaming about it is perfectly normal, but you sure as hell shouldn't tell her about it.