Feed them, have them talk to people, have them go to the bathroom and take showers/baths, make them have fun, make them comfortable and you should have happy sims.. Or you can do Ctrl + Shift + C and type in maxmotives
Koalas do not take showers.
yes and they have sleep overs and pillow fights and then they take showers together and then they have make out party's
Build to Cabins and to Cabin Chairs :)
Many couples take showers together. It's just another form of intimacy and possibly an outlet for some fun!
so they can take showers together and make babys
No Under certain conditions maybe, like in school or swimming pool showers, but not together in the household shower.
People take showers to wash away dirt, sweat, oil, and body odor.
They have WooHoo (When 2 Sims love each other very much... Ask ur parents) Kissing Showers Toilets Sexy dances
You can't
Yes, your Sims can get married and have children together.
It is possible to take cold showers during the winter, though it may be uncomfortable.