You thought and said "You should take your pants off". As you found the change you wanted Keenan took his shorts and underwear off revealing your less than impressive member.
Keenan said "Wow, about as small as I remembered from that one time." You then pressed the remote and Keenan felt a throbbing sensation in his groin and said "Well I feel excited. Maybe seeing myself with big boobs was enough eh?" then watched as his dick hardened and then started to grow and then grow some more. His dick extended to a foot long hard and his balls were about the size of eggs. Keenan gripped his manhood and said "whelp this thing isn't small anymore like your boobs. Why the heck do you look a little flushed Stan?"
You looked at Keenan and said "I can't believe I made some guy's dick grow. Your fucking body's giving me mixed emotions and these giant sensitive breasts aren't helping." Your hands acting by themselves were fiddling with the remote and accidentally pressed something and then saw Keenan's body start to grow a little bigger and more muscular. In Keenan's body your emotions tell you that you definitely are attracted to your old body. Keenan noticed that and picked you up and said "How about we go upstairs and take care of some of those emotions."
Keenan brought you to your room and laid you down on your old bed and started taking off your jeans and panties where Keenan then...