When my g/f and I are doing all the foreplay stuff, i get aroused; i guess. However as soon as were about to have sex, and i whip out the condom, the bastard goes limp, and it takes all i can do to make it a chub... a f**kn chub!! gah. Anyway so you can go ahead and have sex w/ a chub, but its about 1/2 the size as normal, so you dont feel exactly prideful.
Then, when that horror is over, it takes me about 1 minute or less to eject. *sigh* Im 19, i dont think i should be having this problem yet.