1. Yes your sims can change body types with exercise/diet. 2. I didn't even know you could buy a bike, one of my sims randomly rode a bike home from work and I never saw it again. :-(
From what I've seen in real life, twins of different genders aren't that common, so I wouldn't be surprised you can't have them in the game.I was always annoyed at TS2 for never giving me twins of the same gender, but I think it should still happen.
Once you download any content it needs to be installed from the launcher under the downloads tab. :-) Edit: just reread your post and if you've done that already then I don't know what to tell you. :shock:
The iphone/ipod version has load times (like TS2 where you have to go back to the neighborhood to go to another lot), but they aren't long. There are very few community lots and not very many clothing/hair options. It has good graphics though. Hope I helped. :-)
I haven't had twins yet. And the genetics are random. Therefore, a guy with red hair and a girl with brown hair would produce a baby who has a 50/50 chance of obtaining either color.
Haha I hung my USB drive over my head and pretended I was a sim as well! I haven't taken any of it out of the house though. Wouldn't want to scratch it!
You can still do most of the romantic interactions, but you have to be like in the mood or something. (do as many romantic interactions as you can) And for whatever reason, woohoo is initiated in conversation.