It has semi-mature themes: Sexual overtones (although censored) and a little comic violence
No not on the PS2 version of the game
nothing but buy extension packs its great when u get them
Go to build mode of course! -Awesome face-
Yes you don't need sims 1
well u cant really choose if u want twins or not sorry.
ps2 or PC i know PC but not anything else search it on utube m8
No. You can only marry sims that don't live with you, to move them into your family.
No. You just keep making out with the other sim, until it says you are pregnant.
i guess you could do that in the sims1 but you can't make your sim nude in the sims3.
go to the home screen then hold in R1 R2 L1 L2 then enter PARTY M
If you get into a very good mood with very high relationship, (max 100) you can do it. All consoles work.
You have to have sims from different household and they have to be 100% in love with each other, then in time the option 'Propose' will appear.