TIFU by eating my dad's underwear

I know what you're thinking: How did I get to a place where I swallowed and later passed my biological father's undergarments? To understand this, I have to take you back to when I was 12.

I discovered then that I had an abnormal fetish. I know it's weird, and I've been told this many times, so if you feel like commenthing "wtf," go ahead, but rest assured I've heard it from gfs, friends, and even my sex-ed teacher (if you wanna hear that story, lmk), but my fetish is eating girls panties. No, not just putting them in my mouth, literally blending them up and drinking them.

Now, I can take you on a trip to this evening at 6pm. My girlfriend had been here an hour before. We fucked and then she ran off to work. I find panties on the ground and assume she had left them intentionally or not, so I snuck into the kitchen, blended them up, and chugged them. I think nothing of this, as I'd done it literally dozens of times since I was 16.

Fast-forward to 9pm. My dad is going around the house, looking for his special underwear (he lost a testicle in a motorcycle accident a couple months ago and was prescribed special undies). At first, I help him look along with my sister and mom, and then it clicks. I ask him what they looked like and he makes a crack that they looked like pink panties. I realized then that I had eaten his special undies. Oh my god.

He didn't find them and my mom ended up getting him another pair from CVS. I feel bad for not telling him but Jesus Christ I can't even get over what I've done myself. I shit out his shredded, digested panties an hour ago. Jesus.

TL;DR Thought my dad's undies were my gf's panties and ate them