queefing? ugh

allllright so, I can have sex missionary (I'm the girl so I'm on bottom) and my vagina won't make a single sound. I rode my boyfriend and made the biggest queefing noise, doggystyle and any position that involves bending my groin area has the same affect. we both laugh it off and it's no big deal... but honesty, I'm sick of the noise!!! so gross to me and I wish it would just stop. what do I do?