If you ever lost weight (20 pounds +) please help me.?

I'm a male, 5 foot 8, 175 pounds. Is it possible for me to lose around 25 pounds by Decenber 12th? Me and some of my mates are going to a jaccuzi party in Leeds, and its going to be a bunch of hot women there. I really want to lose the weight so I can be able to take my shirt off in front of the women. Is it possible?