There were around 20 other staffs and their spouses. It was good get together. But all the while I noticed, after I had introduced my wife to Ma’am,...she was all the time with her. It was awkward but not strange. Anyways we left the party at 11.30 pm and Ma’am signed to my wife, that she will call her. On way back , my wife told me that Ma’am , had called both me and her to her residence at around 10 am , and had instructed her to bring some other dress too.In the morning ,as directed by Ma’am ,. I continued groping as I kissed and kissed down her back to her amazing big soft ass. My hand slid up her inner thigh until she opened her legs welcoming my touch as I fondled her hefty wet pussy. "Ohh jesus" I bent her forward and started to suck her wetness out of her thong. Her ass pushed back at me while I pulled her thong down licking every inch of her full ass with two fingers knuckle deep between her big full lips. "AAHHHOOO" as I tongued her anus. I stopped and stood there making. "Nice one mate." the man said as he and his curvy companion squeezed past us. "She's a bloody cracker."The babysitter couldn't thank me enough when I handed her a twenty pound note and bade her good night, we looked in on the twins huddled together in their bed, then we went into mum's bedroom and closed the door.There was no angst, no anxiety, not even any guilt, just two people who were as one, her lips were soft and pliable under mine, her breath sweet as it mingled with mine, she moaned. No-one seems to know why Gill called us here. I guess it is to play golf but that’s because the other guys are talking about it. After a while, Gill comes to greet us, but instead of calling us he waves his hand and signals silence, by placing his index finger over his lips. We all giggle like k**s.“May is sunbathing!” One of the men whispered to us, eyes bright.“Topless I hope!” said another, “she has gorgeous tits!” He looked at us, then at Gill and added laughing, “So they say!”We all.