lunitic soul there are many different reasons why a person may bleed after having sex... most times its because of normal things like dryness (a body naturally goes through many different things during intimacy and one of those things is how much fluid is there at different times through out the moment. some people need a little extra help in this area) age is also a normal factor in this kind of thing, as is things like medications, stress, nervousness, foreplay, past or present drug usage...gosh there are so many different things that can cause this kind of problem...

the best thing to do in this kind of situation is to contact a medical doctor or ob\gyn doctor who can tell you exactly why this is happening to you and how to make it so that it doesnt happen again.