[Vana_B]

i found it arousing, then when i started to see some development even more arousing

Same here.  I have always enjoyed nipple play.  Between taking steroids for muscle growth and intense nipple play, my breasts grew a bit.  The more they grew the more sensitive/pleasure they gave me. I am now to the point, I can orgasm from breast/nipple play alone. It's a kink for me, and have no i idea why I want them bigger...but it feels "right" so I continue. 

I do have a very supportive yet sexually demanding wife,  so lots of stopping/starting to keep things working down below.