Diabolik requests from my Tumblr

Pubic hair is straight and unshaven. Doesn't see the point, it's not like he has sex enough for people to complain. (Not that anyone ever would)
Carpet matches the drapes.
Karlheinz shapeshifts so his dick is 10.5 inches (bigger is better right?) Naturally he's 7.23 when erect. Above average
When flaccid he's 6.13 with his abilities and, naturally he's 4.35 when flaccid.
Has a nice girth of 4.28 when erect and 3.46 when flaccid.
His ass is average not big, but definitely not small. Never done anal and even when his partner gets him into it, Karlheinz would still prefers you on his dick.
His average sexual experience can last 15-20 minutes, however he can go many, many, rounds. (5 orgasms before he waves the flag)
Karlheinz is not a horny boy, he can go centuries without getting his dick wet. That being said, if his partner wants the king's dick, he can get it up in seconds.
When first having sex with him, it'll be pretty vanilla. The best vanilla sex, but he assumes that's all he needs to do to please you.
Easily talked into doing all sorts of kinky things (as long as he's on top).

Female

Pubic hair is left to grow wild and untamed, like her hair. If she knows she's going to have sex then she shaves or "magics" the hair away. Likes her pubes.
Carpet matches the drapes.
Karlheinz has a nice big clit, perfect for rubbing and squeezing, and nice thick folds that curve outwards.. All in all Karlheinz is well built with big breasts and nice puffy nipples. Ass is big too. ;)
When not lying to people about her form... Small boobs, clit is smaller and kept hidden in her hood. Everything is not as....thick.
It takes a while for Karlheinz to get nice and wet so usually when she has sex there's plenty of friction and it can be somewhat painful. She doesn't have sex often.
Sex is non-kinky, unless partner begs to try some new things.

Richter

Pubic hair depends on his partner, he'll grow it out if his partner likes it (wether to pull or for aesthetic) or be clean shaven. His default is trimmed because he doesn't care for his hair.
Carpet matches the drapes. The shade is darker almost black.
When erect Richter is 6.73 inches and when flaccid he's 3.89 inches.
Girth wise he's 4.31 when erect 3.47 when flaccid.
His ass his bony and, sadly, not as nice as his brothers. Unlike Karlheinz, however, he really enjoys anal and doesn't mind never having his dick touched again if his partner wishes it.
His average sexual experience can go from a quickie (5 min) to 30 minutes. It really depends on how horny his partner and he is. If he cums too quickly he doesn't mind making it up for it. He'll keep going till he passes out if his partner wishes it. ( 6 orgasms max and requires mental effort from him)
Thanks to Cordelia, Richter actually has an incredibly high sex drive, always ready to go. If he doesn't have a partner, then it completely stops working. He needs some kind of connection/affection to get going. When he does get that connection....he's a barnacle.
More kinky than his brother, but doesn't do anything extreme. He'll gladly kiss your feet, get chocked, bit, spanked or vice versa the first time.
Further kinks, again depend on what his partner wants to do. He can convince himself to like a good amount of things.

Female

Wavy, but kept neatly trimmed. (Once trimmed to look like a C for Cordelia)
Carpet matches the drapes, but is slighter lighter than her hair.
Richter sadly didn't get the big bust like his sister, but got a bigger ass and her breasts are still a flattering B cup, with cute nipples. Folds are thinner and her right labia is bigger than her left. Clit isn't hooded, despite being small.
Her clit can take a lot of pain. (If partner begged she'd get her nipples and genitals pierced)
Richter gets wet and loose fast, her partner just has to nibble her ear and whisper some dirty words and she's ready to get fucked. When she doesn't have a partner she masturbates to the thought of Cordelia and someone genuinely caring about her.
Sex is sloppy and wet with Richter, so her partner is free to do whatever they want to her. Keep it vanilla or go full BDSM on her ass.