I'm going to lie about my sexual history to girls
You gotta be joking right now. Why would you lie about your sex life?
I want to portray a better image of myself to the ladies.
If you lie then you would have to keep up with that lie forever. What if you become serious with someone who believes the lie?
If a girl has never had sex before, it's a chance for me to give her her first time! So, more reason for me to lie.
I believe that sex and intimacy is an extremely serious thing, because it is the closest thing that people can do. Lying about it can be very hurtful, so how would it feel if the girl found out she was taken advantage of? How about coming clean and finding someone who will accept your history?