Yes, see, this is the kind of answer I was hoping for. That IS my biggest concern...what if he is not into it at all, and suddenly thinks I'm some sick twisted freak and we never speak again. I have been doing a lot of teasing all summer and I know he checks me out. I'm pretty sure he's been in my toy drawer, and i KNOW he took a nude pic of me off my phone. The dingbat emailed it to himself! But that's what kind of made this escalate. Being a boy and jerking it to a a naked girl, even if she's your sister is one thing but it's a big leap to letting her suck you off. And quite honestly, maybe I only want to do it once...what if he does want it, and wants more. And then flips because I wont do it again.
I like the drunk idea too, I have thought about that a few times.
I might try that this coming weekend, and see what happens, I'll let you know.