TIFU My mom should have spat

This happened a few years back. My family and me(27) were getting ready to hit the beach. Getting the gear from the garage and running around to find things. I was in my room getting my trunks on and tidying up my desk. I grabbed a half-full can of Lacroix and some snack wrappers. With all of the hustle and bustle in the house, requests of me to fetch the chairs and cooler from the garage, I got distracted couldn’t finish cleaning up.

Got the chairs, got the cooler, got back inside, and I notice my mom taking a sip of the can I was coming back to recycle. Apparently, she had a new can of the same flavor somewhere in the house. Milliseconds after her head tilts back she whips around towards the sink and spits out the liquid. What she drank was a few loads of cum that I was too lazy to cleanup with a tissue. It had been left on my desk for a couple weeks. If this hadn’t been a family member I think I would have visibly flipped out but because this was my mother I stayed calm.

After rinsing her mouth out she looks at me with this odd face, one I’ve never seen her ever make. I knew she knew what it was. She also knew I knew she knew what it was. I tried telling her it was phlegm but she didn’t buy it. She kept asking me oddball questions like, “That tasted really fishy. What was that?”, and “Was that what I thought it was?” These were hard to face, I nearly laughed out loud from all the incredibly awkward energy in the room.

We still had to go to the beach. It was beautiful out, but what had just transpired left a rain cloud over what could have been a grand time.

TL;DR My mom swallowed my cum.

(Edit): added clarity about her can around the house.