"So, Erica enjoyed her video call yesterday?" Rhea smirked, as it wasn't really a question. Erica, my wife, had masturbated on the other end of a phone call as she watched me fuck her friend and colleague from behind.
I grinned, eyeing Rhea's soft thighs under the table next to me. They were very much on show today as below her black strappy top, which gave a lovely view of her chest, Rhea wore a green skirt which flirted with the boundaries of propriety given that we were on a week-long course with other teachers and teaching assistants.
"You know she did. Did you enjoy the video she sent you?" We'd recreated the scene as best we could at home, Erica bent over the kitchen sink while I fucked her from behind, and she'd sent the video to Rhea and to yesterday's videographer, another colleague of Erica's, Helen.
Rhea answered, blushing slightly, "I enjoyed it a lot thanks... three times in fact!"
I grinned again as I felt my cock twitch at the thought of Rhea masturbating to our video, before we both waved to Helen as she entered the room and sought us out. Helen was wearing a shorter skirt than she had previously; a dark pleated one, and a white blouse which was buttoned up not far enough to be decent, if not for the white strappy top she wore underneath. I followed her long, toned legs across the room as she walked over and sat on the other side of me to her colleague.
As she placed her stationery in front of her, she turned and I was treated to a pleasant view down her top as she leaned in and whispered into my ear, "Thanks for the video. I think my fiancee would thank you too if he knew why I was so horny last night." Erica had informed me last night about Helen's fiance, as she'd been somewhat surprised that Helen had gotten involved the previous couple of days, even just to suck Rhea's juices from my cock afterwards. Helen had apparently always professed to have a much more traditional view of fidelity than my wife, who had always enjoyed involving other women in our sex life, so while Erica had told me from the start she thought Rhea might have plans for this week, Helen's involvement had been a pleasant and unexpected development. It did, however, seem unlikely that anything more than the erotic clean up she'd provided so far would be on the cards. Still, at least her fiance was reaping the benefits!
The fourth day of the course passed slowly - Erica had been correct at the start of the week, when she'd said she didn't know how they would drag what had previously been a three day course out over a whole week. The answer was to stretch out every activity until nobody was paying attention any more. I don't think there was a single person in the room who stayed on task for the activities right until the course leader asked us to stop. As with the previous day, this led to a lot of daydreaming on my part, which at least twice meant I had to quickly readjust and tuck an erection under the waistband of my boxer shorts before moving to a new activity. Unfortunately the day also involved lots of work with new groups again, so I was unable to work with Rhea or Helen until the last session of the day, when a partner activity saw me paired with Helen.
After half-heartedly attempting the activity, which was only slightly changed from any of the previous three, Helen broke the tedium in a hushed whisper, to avoid being heard by the pair nearest to us. "So Erica really enjoys you... being with other women?"
I smiled. It was a question I wasn't often asked, but I know Erica had been asked by some of her friends she'd told about our lifestyle. Being on a course together for a few days clearly gave a better opportunity for Helen to ask me, although I was sure she'd ask Erica herself when she returned to their school the following week. "She certainly seems to," I responded. "She's bi, as I think she told you?"
Helen nodded without interrupting.
"Well, always before we've both been involved. Threesomes with another woman. I said to Rhea on Monday, it's hard for her to be bothered by what I'm doing when she's sat on another woman's face!"
Helen blushed at this, but smiled and waited for me to continue. "It's only this week she told me she'd be happy for me to have sex with someone else while she wasn't there. From how wet and horny she's been when I've got home, she's definitely enjoying it though!"
Helen sat and thought for a while, and I decided it was best to let her think about it. Eventually, she asked another question. "Does she not want to get other men involved?"
"Honestly, I don't know," I answered. "She's never mentioned the idea. I think, if I'm honest, she likes sex with women better in general. She's always said most previous boyfriends didn't make her cum, and she definitely believes no man can eat out like a woman can! She says I'm good, but nothing beats a woman. I can live with that though!"
"So she just likes for you to sleep with other women?" I could hear the disbelief in Helen's voice and realised what she was getting at.
"No... she likes for both of us to sleep with other women!" I waited a few seconds to let this sink in before continuing. "Erica loves sex, and she knows I do. This week, she saw an opportunity to explore a little bit more by her not being present. I think it's safe to say she's enjoyed it, although I'm pretty sure keeping her involved with pictures... and your video call, has helped!"
Helen took another while to think, and I offered a question of my own. "So, why join us? You were filming the whole thing yesterday."
She chuckled. "Honestly, on Tuesday I wasn't sure I believed Rhea, and then when I followed you in... well, I got horny." She shrugged. "Yesterday, I thought it'd provoke a reaction from Erica. I didn't believe she'd actually enjoy watching you. When she did... well, that's why I decided to ask you about it. I've always thought I'd want another man involved if Jason and I... that's what I didn't understand." She smiled more warmly now and continued, "I figured since it was only other women then it was for you, but I suppose if Erica's getting off too then it works for both of you." She stopped and thought a second or two. "I suppose I understand a bit... I got horny watching you and Rhea yesterday. Otherwise I would never have... you know." She looked conflicted, and I could tell she felt guilty about sucking my cock clean. She had a fiance after all.
"Ever been with another woman?" I asked, trying to distract her from that line of thought.
Helen started, clearly not expecting the question. "No," she answered shortly.
"Maybe that's the difference. Erica says that apart from the obvious missing part, which she loves, then women are generally better than men in bed. Maybe that's why she's only been interested in having more women involved." I paused. "So far." I added, grinning at Helen.
She grinned back, and I suggested we have another go at the activity in front of us before the course finished. The course wound down over the next twenty minutes or so, and although we both participated in the activity, I could tell Helen was distracted. I wondered if she was regretting getting involved with me and Rhea.
The course finished for the day and Helen quickly gathered her things and headed straight to join Rhea getting up on the other side of the room. Again I put my things away slowly, enjoying watching the two leave with their heads close together, clearly in discussion about something, their long legs beneath their short skirts causing my cock to twitch as I hoped there'd be a repeat of the week so far.
As I left the room though, holding the door for the course leader, I noticed neither Rhea or Helen was stood by the toilet doors. I really hoped they hadn't just left to go home. As usual, I entered the men's toilets, but this time I was accosted on entry as Rhea grabbed me and pulled me into a kiss.