This doesn't sound like the behavior of a straight male.

How old are you?

Am 20

I don't understand the question. What do you do now?

What do you WANT to do now? Continue to have sex with the friend? Stop having sex with the friend and have sex with other males? Have sex with females? Have sex with males and females?

If you are straight, you don't have sex with other males.

In fact why did you do this if you are straight

1.If you are straght and were pressured into doing it or were very curious to do but have realised that you straght after the incident then

---> Let you friend know that you were only experimenting and don't want to try it out again.

2.Talk to a coucillor if you are unsure of your sexility.

3. Relax. Its normal to be curious. Many people have tried sex with the same gender just because they were curious.

4. If you have not used protection or have any concerns about your physical self after the incident; then contact your local doctor to describe the nature of the event for medical advice.

5. If you are worried about losing your friend to an awkward moment - then ask yourself; could you see yourself still working out in the future? If yes - then have a man to man conversation with him describing how having sex with him made you feel and explain what you'd like to happen. Let him come up with suggestions that will also express his feelings towards the matter.

If you were completely Hetrosexual, you wouldn't have sex with other males. You wouldn't even be thinking like that. Perhaps you would benefit from some counseling to sort out your feelings about your sexuality.

- And OP wouldn't be saying he was straight, either. In fact, he probably would be saying nothing.