Not technically an age gap but still sleazy.
Long time ago an ex of mine (who was only two years younger than me) had a party at her parents house and as her cousin was staying in her room we spent the night in her younger sisters bedroom.

I have to say it was very weird to be on the 'short strokes' and to glance around the room to not only notice a young girls school uniform but to see the school photo of a 13 year old version of my girlfriend smiling at me as we banged away on her Bros quilt cover.
(Tugnut Ex of this parish, Mon 8 Dec 2008, 16:40, Reply)