A second after our lips met, she opened hers and snaked her tongue into my mouth. I responded a split second later with my tongue, teasing and probing...together. Wow my mum can kiss! I was rock hard now and could not believe what was happening. My sensible side told me to stop but the brain in my balls was telling me to go for it!She put her right hand behind my head and applied gentle pressure to the kiss. I let my left hand move up from my side to find her breast and the stiffening nipple,. I thought for sure the game was on and quickly retreated to my nest in the closet. I had some blankets in there and was careful to get very relaxed so I would not get a cramp. I heard the door open and my wife began putting her stuff away. I heard her sit on the bed, but I did not know what else was going on. Later on we shared every second of the encounter and for clarity; I will describe the events as if I had actually seen them. It was very vivid anyway because she was very vocal for my. Technically I didn't notice her, as I wasn't paying attention to her. I was just looking at Keith. I was waiting for him to say something.Sara took Linda's hand as she told us good night as this was between us and not them. Keith came to me taking my hand sitting me on the sofa. He told me sorry he should have kept a better eye on her.”It wasn’t me Kate, Megan did it,” Keith said.Keith walked away and got that scorch bottle he poured himself a shot glass and kicked it back. He told me sorry. My aunt then asked me "is there anything in particular you want to do to me baby?" I said, "I want to fuck you from behind Aunty Kath" she then got off of my cock and bent over onto all hands on her bed. Then she said "alright then baby, fuck me!" I immediately got right behind her and started to push the tip of my cock into her, I slowly went deeper and deeper, slowly thrusting in and out. It felt so much better from this position and I was even hornier because I had the view of her perfect.