YMLW-033: Os oeddech chi'n gwylio DVD erotig gyda'ch mam-yng-nghyfraith yn ei 60au a'i 50au tra bod ei merch-yng-nghyfraith i ffwrdd ... 4 awr

If you were watching an erotic DVD with your mother-in-law in her 60s and 50s while her daughter-in-law was away ... 4 hours