The Hollister medical adhesive is the most perfect solution, as the breast forms do stay in place if you want - and can - for 3 days without taking them off. It is really strong and allows you to do all you like, even sleep with them, do sports, jump around, dance or whatever.
 
But, you do need to remove the breast forms with the Hollister adhesive remover and you do need to clean your breast forms after 2-3 times of wearing, as otherwise it builts up a layer and this makes the PU cover to get perish longterm.
 
Both articles are normally made for mastectomy patients and are absolute hypoallergenic and skin friendly. It is even used on scare tissue - so you can be sure it will not affect your skin in any way.