Makenziegma: Go into cas and choose the first daily outfit as the one. Click on the tab for that outfit and add it five times. All other outfits strip your sims down. You still get "underwear" a couple of times but the five other outfits usually come up.
@MarianT: My "cave" is two stories, one ground level, one basment level which is the actual live in cave. When I click on a Sim to do something, or try to go into build mode, (constantly renovating), the game kicks one or more of my Sims upstairs, usually in the middle of the rocks where I can't see them, (did that with a toddler!). I've repaired game and done the usual just wondering if enlarged rocks might be causing this or is it some sort of glitch? Also, my starving Sims with a plate of food, untouched, opt to "roast" and I have to fight them to get them to eat. Is this normal? All I have to say about having twins is, don't! If my own kids acted like this I'd have left home, or sent them to grandma for a day. Only choice for me for gender adjustment was strawberries, (she'll eat those one at a time), so two girl hellions. (Cute though).