Relationship Infidelity

I am a 25 year old woman and my man continuously cheats on me. Is there anything that I can do sexually that can maybe deter him from cheating?

When a man cheats on a woman it rarely has anything to do with his partner per se; it may have a lot to do with the nature of the relationship. The issue is more likely to be about commitment and the character of the one who is cheating. It demonstrates an unwillingness to honor a commitment and self-centered attitude. Since you say that he "continuously cheats on me" it suggests that you have permitted this type of behavior and he knows that he can get away with it. It also suggests that you suffer from low self-esteem since you have remained in a relationship with someone who has little respect for you.