So, to get a little background on Relle --> http://www.furaffinity.net/view/7755794/

Here's his mother, a succubus mistress who roams in the Lust section of the underworld.

She's a dominant, promiscious lady who knows what she wants. She lives up to her status, unable to get satisfied from one mortal and will drain energy from more than one at a time 'till she's had enough.
Due to Rellé (and her husband) , she's adapted a motherly feel to her, making her more affectionate and playful rather than straight to the point when it comes to sex.

When she's not boinking around with her "victims" she's admiring herself in mirrors (even trying out clothes she can conjure by will), luring unsuspecting mortals into the sins of lust (occasionally joining in) and spending time with her husband and son.

She takes great pleasure in teasing and baby-talking Relle when the father is not around, even going as far as to 'lure' him into "intimate family bonding" so to speak~
She does care for him despite being a little harsher than Relle's goldhearted dad.
Each time this is found out, her husband strikes her with "Divine Punishment" in the form of sexing her up to uncomprehensible levels of pleasure so she has no choice but to succumb to him. ( in the best fashion ;) )
The only one to dominant her (and satisfy her on his own) is her husband.

Her husband -> http://www.furaffinity.net/view/14021821/