I'm on a roll

[rebbonk]

I was telling a girl in the pub about my uncanny ability to guess what day a woman was born on just by feeling their breasts.

"Really?" she said, "Go on then...try."

After about 30 seconds of fondling she began to lose patience.

"Come on," she demanded, "What day was I born?"

I said

Spoiler:

"Yesterday?"