My son Matt and I have also always enjoyed our play spankings as well as birthday spankings, they are always over my lap on his bare bottom as well as these fun, loving bare bottom times.
Matthew turned 14 in August and I loved giving him his birthday spanking sitting on his bed in the morning before he got dressed. He got 15 plus one to grow on and I took my time with bottom rubs and squeezes in between my spanks.
I do it the same way, starting out light and ending with zingers. My best friend and spanking mom Meredith and her son Jonathan came over later, she has given Matt a couple punishment spankings when he has slept over their house and I Jonathan.