Just because you play with your ass or even stick something up there does not mean you are gay. One of my favorites is to get in the shower, use the head to spray my cock first to get my hard on going. Take an anal vibrator, lube it up and insert it up my ass and turn it up to full speed and then start stroking. When you cum it is more intense. I sometimes shudder when I use my anal vibrator.
Try it guys, you won't regret it.