This is an extremely hotwives fantasy and it will drive your wife absolutely wild when you show her how you finger your girlfriend while she is at home by yourself fingering her clitoris and then stimulating her G-spot using your thumb. This is known as 'Home Alone' because your girlfriend is in the house alone and you got her to masturbate for you while you watched TV. You saw how close she was getting to the climax and then you told her to take her clothes off and get onto your bed so you could watch tv. Then you undressed again (before you put her in the tub) and started to finger your girlfriend until she moaned loudly..