Some how i/you have gaind thees crystals, (found, gift, passed down). People have been looking for,take or even trade for thees crystals for years. They supposedly bestow powers of transformation for people that have and wear them.
If i have them you can accidently come acrosed them (maid, geeky friend, nanny ect ect) try to steel them (maid, xgfn girl/milf next door, resercher ect ect)
If you have them. You brought them to me to figuer out what they are.
This would involve a friend, neighbor(s), maid, maybe a viset information nurse or teacher/professor woundering why I have missed school.. I make up some excuse like the place is a mess.. they offer to help. While cleaning something spills on there clothing (anything from soda to my Nano bot experiment ).. being sticky they want it off ASAP but have nothing els to wear. I offer them cloths I have from ether my step mom, sis, wife/gf ,exwife/xgf, or stud ethere girls have left behind.. if body modifications is involved start with there normal out fit getting tight and the stretch out the new one they had picked out.. role can be changed a bit