I should applaud her for being such a problem-solver... But damn, it hurt my pride a lot

Do them yourself, it'll help your performance. Actually since she is "loose" it means you're doing the foreplay right.

You actually can make your penis bigger/thicker. That's what penis pumps do ;)

Don't worry about the size. It's the motion of the ocean.

actually, kegel's exercises train the pelvic floor muscles.. not th vagina. the vagina is an elastic organ, not a muscle in itself, that's designed to loosen up and relax and stetch and whahaveyou when the woman is aroused, so that the penis protruding it wouldn't damage the vanigal tissue. you can't actually tighten one's vagina w/ kegel's but you can help to prevent future urinary incontinence and shit so, good on your girlfriend to be doing those exercises.

Got 'em

You can make it thicker you know and if you run out of steam fast stop thrusting and grind a bit till you're good to go again