I don’t have consult any doctor before

Patient: I have a girlfriend. Our relation is just for 3 months. She stay away from me. But when we meet together. I mean we walk together and catch hand each other. If sometimes touches her body. After sometimes my underwear goes wet. But we don’t make any sexual behave. Please suggest me about that how can I control this matter. Couple of times happens when we both stay along and walk or gossip with each other any restaurant, park etc. How can I remove this problem? Please I need your earliest request.Thank you.

Symptoms: My under wear goes wet, Body temperature increases.