Her mother joins you

The bed room door, which was a little ajar, suddenly creaks open a little wider, and you can see a panicked Mrs. Stein desperately trying to close it. Kelly turns around and shouts; 'Mom?!'

Mrs. Stein gets up from her knees, straightens her clothes and walks into the room like nothing strange is going on. 'Hey there, kids. I just wanted to see if maybe you wanted something to drink?'

'Mom! Can't you see we're busy?' Kelly asks furiously.

'Well, yes darling, but you aren't doing so well,' Mrs. Stein tells her daughter, who's staring at her indignantly. 'If you want to impress Robbie, you have to apply what we practiced with the dildo. Now admittedly, it's a little bigger than the dildo, but the same principle applies. Just open your throat, like I said.'

'Look, mom, this is my first time, and I'm nervous,' Kelly tells her. 'I still need to adjust a little.'

'Oh, that's alright sweetie,' she says, comfortingly. 'Mommy is here to guide you now. If you don't mind of course?'

She directs this last question at you, and you shake your head, still confused at this eccentric woman. She's fantastically hot though, with a mind-blowing body. Her tits are a sight to tell your grandkids about, so you don't really mind having a go at her too, if the chance permits it. She sits on her knees in front of you then, next to Kelly.

'Alright, first let's take off those glasses,' she says as she takes action. She then grabs the base of your cock and instructs her daughter to go down on you, all the while giving her tips and guidelines.