Well, I won't lie... like most other guys, I do have temptations
of my own as well. If anything, I would think that it would be
abnormal if I actually have no desire to look at women in
swimwear/lingerie at all.
The thing is, I try my best to keep my temptations under control,
for it would otherwise distract me from the bigger picture. For
instance, putting Victoria's Secrets catalogue pages on my window
panes would highly likely distract me from my lecture notes, which
I feel are of infinitely greater importance.
That said, note that I said I try my best. Sometimes I do get
distracted. 
Speaking of which, it's time for me to get back to serious
revision. See you guys again in an hour or so.
*me mysteriously disappears in a puff of smoke*