>>29663543
You're fatter, probably not remembering exactly, probably measured different and measured in a different state of being hard.
Your penis size doesn't change, unless you do penis extensions (apparently it's very painful, it's like braces but stretching your penis for a couple hours a day for months), how horny you get can change, how much blood is given to your penis can change. Hormones play a big role in this, if you're too fat that can impact your hormonal levels, medication you're on, stress/anxiety and so on. Even worrying about your penis size, can make it not get as big as it can because you're too stressed about the number.
Imo penis size doesn't matter, too much, I've made myself cum with just a singular finger barely reaching 5cm. I'd rather my future husband have a penis your size or smaller than someone who's is 17cm or bigger. Big penises make anal more annoying to start, less spontaneous and have less frequent.