Originally Posted by life
wat helps alot is when u rly dont think of sexual things, like omg i wanna fu*k this girl outright...try thinking of really old nuns, works for me =P
EDIT(misread the question Ant, but if u wanna know how to stop it, there you go=D)
I dont think anyone will be thinking of an old nun when you have a good looking girl grinding you. IMO i think the girls would be proud that they are able to arouse you.