What trouble did i cause now for myself?

About 5 hours ago i was at a friends house playing spin the bottle and it landed on me and this other guy.......Im straight (i think...) and have no shame, its all fun and games so i just went on and kissed him (he is gay). After that things got pretty quiet and everybody went on and did their own things like play video games, go outback, and other stuff and then left. I feel like i kinda ruined things by doing that and think that my friends may not like me anymore. I dont know why, i dont see the big deal.....but anyway, what do i do to fix this? what to say?