Hi Sam... Rob the CreativeOne here and I see this thread is 10 years old now. wycowboy gave a really great reply resurfacing this again. Kudos to him and upon reading your question, curiosity got the best of me as to after all these years... What ended up happening. Did you in fact give your friend the awesome gift of enjoyment that you wanted to give him ? Hopefully yes and to this day do you two still have your guy time together? I mean strait or not. Every guy I'm sure has enjoyed the pleasure of at least dipping his own finger tip inside his own love tunnel for pleasure.

I consider myself a straight guy but I finger fuck myself and I use butt plugs/dildos on my self all the time. If you offered one to me I would thank you and use it. If you offered to suck my cock I would let you. If that makes me bi, so be it.

i dont jerk off with friends, i dont put a finger in my arsehole while jerking off.

For me bad idea but I presume that it is probably 50% or there about.

That would be AWESOME! I love finger fucking.

Ask him.

oh oh... what are all those "straight" guys doing???

Maybe if he knew what an intense orgasm it would give him he might not be offended. Some guys are conditioned to reject this kind of activity outright. You know him best to make this decision.