yesterday my boyfriend and I were making out a lot and he wanted to finger me but I obviously didn't let him since I was on my period but I just didn't want to tell him that since I thought he would be disgusted. I just let him do things from the outside of my pants but he would consistently beg to finger me. I ended up giving him head 4 times because I felt bad but he would claim that I was teasing him (which I was) and one reason why I was was because I didn't let him finger me apparently. But how do I tell him next time?