Have her sit on it.

Once you reach the bench, you push down on her shoulders, nudging her to sit down. Her face is now inches from your dick and you place your hands on either side of her head, guiding her mouth to your member. Mrs. Allen eagerly opens up, slurping your bulbous head past her lips and into her mouth. She accepts your length like a seasoned pro, working you down inch by inch until her nose is pressed against your pelvis. Grabbing hold of your ass cheeks, she begins to slowly bob her head, gliding her lips along the length of your member.

Unable to control yourself, you begin moving with her, picking up your speed and increasing the length of your shaft that’s sliding in and out of her mouth. The change in pace catches her off guard at first, making her gag on your cock as it hits the back of her throat. Quickly recovering, Mrs. Allen manages to relax her throat, allowing your balls to bump into her chin with every thrust forward. She stares up at you with her bright, blue eyes, the corners of her mouth turning up in a smile, and begins to tickle your balls with her hand. You're stunned by this cock-hungry woman in front of you and her deep-throating skills and want nothing more than to fill her belly with your cum.

The dominant position over your girlfriend's mom emboldens you and you begin voicing your thoughts. "My God! Look at you! You can't get enough cock, can you!?" Keeping your hands on the side of her head, you continue moving your hips, savoring the feeling of her tongue sliding along the underside of your shaft. "Shit Mrs. Allen! You're even better than your daughter! Don't stop! That feels amazing!"

Mrs. Allen continues her work on your cock, gagging from time to time when your dick hits the back of her throat, but never pausing. She's moved her hand from your ass to between her legs and is now frantically diddling her clit, getting herself off at the same time as you. Her drool covers her chin and coats your balls. "You dirty little MILF!" you tell her. "You love how my cock feels in your mouth, don't you? I already filled your pussy with my cum, and now I want to fill up your mouth. Suck my cock Mrs. Allen! Suck it like the dirty little MILF you are!"

Mrs. Allen obediently keeps at it, working hard to give you exactly what you want. With such skill, it's only a matter of time before she has you nearing orgasm again and you feel your loins begin to tighten. "Fuck Mrs. Allen" you call out "You're gonna make me cum! Are you ready for it?... Are you ready?... Here it is!... Here it is!!! Uuuunnnggghhhh!!!" Throwing your head back and keeping your hands on the side of her head, you fire off the first rope of creamy spunk into Mrs. Allen's mouth. A second and third quickly follow, completely filling her mouth with a surprising amount, considering how recently you had just cum. She manages to swallow most of it down, with only a small bead dribbling out of the corner of her mouth. Lips locked tight around you, her skilled mouth continues sucking you off until the final waves of your orgasm pass. Releasing the side of her head, you place your hands on the shower wall to brace yourself, as your knees become weak underneath you.

Noticing you've finished, Mrs. Allen slowly slides her mouth from your shaft. A shiver runs across your body as she grabs hold at the base of your cock and squeezes the last drop of cum to the tip. Smiling up at you, she licks it off and makes an exaggerated show off swallowing it down, before giving the head of your dick a gentle kiss and rising to her feet.

Taking advantage of the newly vacated seat, you slide onto it and watch as Mrs. Allen resumes her shower, turning around slowly and letting the water cascade down her curvy body. Once fully rinsed off, Mrs. Allen turns off the shower and climbs out, wrapping herself in a white, terry cloth robe that falls to mid-thigh. She hands you a towel to dry yourself off with before walking back into her bedroom. You follow her out and watch her climb under her sheets into her bed before she finally speaks to you again. "Now I think we really are done for tonight, David. I don't think I can handle any more, and it's probably not a good idea for you to stay here much longer; Tia could be home soon. Tonight was fun, but I'll leave you alone from now on. This will stay our little secret."

"OK Mrs. Allen." you say as you begin gathering your clothes. "I'll leave tonight, but I don't think I want you to leave me alone from now on. After tonight, I'm gonna have trouble not fantasizing about you and calling out your name when I fuck your daughter!"

"Oh David, you're sweet to say that, but I think we both know this should only be a one-time thing, don't we?"

"I don't think so Mrs. Allen. I think you enjoyed this as much as I did, and just think of how much easier it would be for you, to have me take care of you when your husband is out of town, instead of trying to sneak someone else in here. If anyone sees me, they'll just think I'm here to see Tia. I hope this won't be the last time we're together. You know how to reach me if you want to."

You get yourself dressed and are about to leave, when something catches your eye. Bending down, you pick up her black G-string and hold it up for her, a sly grin on your face. "This is coming home with me tonight so I can smell you while I masturbate and fantasize about fucking you again." You slip the G-string in your pocket, then let yourself out the way you came in and make your way back home.

As you walk home, you think about how things between yourself and Tia just became a lot more complicated. You love her, but you found out today you also love fucking her mom. You wonder if you'll be able to keep things secret then fast-forward things in your head and think about what would happen if you ever married Tia. You smile as you think about dinner tonight and decide family gatherings with Mrs. Allen as your mother-in-law could be very interesting.