So on Saturday my girlfriend surprised me with a picnic for my birthday, which I turned into a surprise proposal. And then on Sunday she thought she was surprising me with a birthday lunch at her parent's place, but because I had asked her dad's permission and her mom knew, they turned it into a surprise engagement party and invited all of her friends too, so what she thought was a surprise for me, was still a surprise for me, but also turned into a surprise for her.
Surpriseception.