Masturbation

Yesterday I was with my girlfriends and my crush was on his way. All of a sudden I see him roll in to the drive way on his skateboard and something about it turned me on... I sought out to my girlfriends for help (not in front of my crush) and they suggested to go into the bathroom and masturbate. I didn’t want to because I was at another persons house. But they insisted and I went. I did it for about 5 seconds and stopped because it felt wrong doing that at someone else’s house. The rest of the time I was there I felt like I was going to explode... I need help controlling myself. Can anyone help me?