I stood up, walked over to Mrs. Johnson and put my hand out.
"It would be my pleasure".
Mrs. Johnson then gave my half-swollen cock a tiny kiss, and grabbed my hand as I hoisted her onto her feet. I turned her towards the steady stream of the warm shower, and started to rub away the cum that was pasted all over her torso.
"You sure got me good with that thing", she said as she looked down at her body, "completely covered me." Her tits were still rising and falling as we both were catching our breath. I grabbed one of her big ass-cheeks and pulled her in for a long kiss, pushing her tits up towards her neck with my chest. We must had been in the shower for about 30 minutes by that point, and the building steam was beginning to make it hard to see.
"Well I don't want this to end, but I better get back upstairs and get ready for bed before Dave comes back. This...was amazing, Kevin."
"I agree, I wish I could come up to your bed with you. Um...Mrs. Johnson?"
"Yes, Kevin?"
"Was this like a one and done type of thing, or do you think we can continue?" I feared her response. Fucking her had been one of the best experiences of my life, and now entertaining the possibility of it never happening again was scaring the shit out of me as we left the shower to dry off.
"I think if we're careful there's no reason we can't have a bit of fun from time to time." She paused and got a bit more serious, "But you can never tell anyone, and I mean no one. I have a family and a business to keep, and this coming out would ruin me. This was pretty reckless tonight, so we need to be much more careful in the future."
"I can keep this a secret, you're worth taking this to the grave." And as I said that, my cock sprung up while I watched Mrs. Johnson dry herself with a tiny gym towel.
"Jesus, he can really go the mile, can't he?" Mrs. Johnson giggled as she was now staring at a fully hard erection. "Goodnight Kevin, hopefully I'll see you working out here soon. I'm going to need a massage because I have a feeling I'm going to be massively sore tomorrow."
And with that, Mrs. Johnson turned the corner and began walking to the elevator to go to her house upstairs. I turned to the mirror and sat down. Fuck me, I thought, I can't wait to fuck her again.
12 days had passed since that night. I had worked out a few more times, obviously hoping that I'd get another chance to fuck Mrs. Johnson, but nothing had happened. Either other gym-members were there, Mrs. Johnson was busy massaging patients, or I didn't see her at all while exercising. Every time I had been there, I grew so hard within the first 20 minutes of working out that I had to go down to the showers and re-live that memory of pounding Mrs. Johnson from behind while I jerked off. It was still less than two weeks, but I did leave for grad-school in a month and knew that the time was going quick.
One day at home, I heard my mom speaking on the phone to someone that sounded like a friend.
"Dave's leaving for Sturgis this morning, isn't he?" My mom asked.
Holy shit, it's Mrs. Johnson and she's going to be alone for a week, this is my shot. I walked into the kitchen to grab some food and to see if I could spy on their conversation further.
"...actually, he's just come in, what did you want help with?" My mom looked at me and pointed at the phone while mouthing words I couldn't make out.
"Oh he'd love to help Natalie, when should I send him over? Sounds good, talk to you later, bye." She hung up the phone.
"Natalie wants some help moving some gym equipment this evening after they close. I told her you'd be happy to come do it, that's okay with you, yeah?"
"Of course, I'll bike over in a couple of hours." I could barely contain my excitement and turned away so I didn't look like a smiling lunatic. I ran upstairs to shave my cock and balls and shower before having to head over.
When 7pm hit, I biked down to the gym, later knocking on the locked front-door. Mrs. Johnson came into view a couple of seconds later. Fucking hell, I could see through the window that she had tiny aged gym shorts on with a long-sleeve black top that showed a good deal of her busty cleavage.
"Hi, Kevin, it's been a while." She said grinning while holding the door open.
"Hey Mrs. Johnson, how's it going?" I replied as I walked in, fuck she looked amazing.
"Not bad tonight, thanks for agreeing to help with this. Dave left for Sturgis this afternoon and now I have a ton to do this week while he's away."
I followed her to the second floor where the gym equipment is. She seemed like normal, not being super flirty nor acting like she had me inside her in the basement less than two weeks prior. Goddamn...her ass was basically eating her shorts as I followed closely behind her on the stairs, it looked fantastic. It took a considerable amount of restraint not to bury my face in between the cheeks, fantasizing about what eating out her ass would be like...
"Enjoying the view?" Mrs. Johnson stopped and turned.
I snapped out of it.
"Sorry, just got a bit distracted, your ass looks great." I whispered quietly.
"Don't worry, we're 100% alone and you don't have to whisper. And thanks, I thought you'd like them."
Fucking hell, was she just going to cock-tease me while doing manual labor for a couple of hours? Two can play at that game, I thought. I wore my athletic shorts without underwear on purpose so she would know exactly when I was hard. Mrs. Johnson went over to a weight bench, and bent over, giving me full view of her deep cleavage. Her tits were hanging down, only kept covered by a white sports bra and her cotton shirt. Fucking hell, I could feel my cock start pressing against my shorts. What was even my favorite feature of Mrs. Johnsons? Her massive rack, her big firm ass, or her toned thick legs. I continued to stare at her swinging tits when Mrs. Johnson looked up.
"Kevin, could you help me carry this over to the other side of the room?"
"Of course!" I replied as I walked over, starting to get embarrassed about my raging boner. No, be bold I thought. Mrs. Johnson asked you over here after close when her husband was out, and now she's wearing a skimpy outfit that shows off the same tits I plastered with cum some nights ago. She wants it, but just I'll just take my time until she makes the first move I thought.
We picked up the weight bench and started carrying it to the other side of the room.