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The original was posted on /r/tifu by /u/Pale_Message_1739 on 2026-07-27 02:19:48+00:00.

Obligatory this happened a few months ago. I (20F) and my gf (21F) are both college students. We were headed to the library with our friend (20F) to do a long night of group studying. We wanted to eat first so we didn’t have to get takeout (broke college students, eating out is expensive af). Our friend had already eaten so I made boxed mac and cheese for my gf and I. I was out of milk, which I didn’t realize until after I’d already started boiling the noodles. Luckily I make cold foam for my coffee all the time, so I had some heavy whipping cream in the fridge. I figured I would just use more butter than the box recommended and use a bit of heavy whipping cream in place of milk. Not as much as I would have regular milk, but some, because making boxed mac and cheese with just butter is an oily mess, which I learned the hard way a different time.

Anyway I dished it up and we started eating, and my gf really liked it. I mean, who doesn’t like mac and cheese, but this was Walmart brand super cheap stuff, so I was a little surprised. She asked if I added different spices or something, and I said no, but I used heavy whipping cream instead of milk. She looked at me like I was crazy. I didn’t think it was that weird to do. I mean it wasn’t my first choice but it was what I had. She said she was going to have stomach issues from it. (We are both a little lactose intolerant, I mean isn’t everyone?) I apologized but I was kind of laughing, and she was too.

Then she stopped about halfway through eating and went to the bathroom. She was in there for like 20 minutes so I texted her and asked if she was okay. She said “no I’m shitting my brains out”. I said “haha I’m so sorry I didn’t mean to lol”. She came out and was kind of upset but also not serious about it, saying how I screwed up her stomach for the whole day and night because of the heavy whipping cream. But then she sat down to finish the bowl, because according to her it was the best boxed mac and cheese she’d ever had. But then she went to the bathroom for like another 20 minutes after. I was just laughing with our friend the whole time. We were late to the library to study, which wasn’t ideal but it was better to poop at home than out in public.

My gf still brings it up sometimes, saying she’s “still mad at me for that,” but I know she’s kidding. Also any time one of us poops for a long time we just say “at least it isn’t as bad as the heavy cream mac and cheese”. So let’s just say I will never make it with heavy whipping cream again, to hopefully save the porcelain.

TL;DR: I made my gf mac and cheese with heavy whipping cream instead of milk, and she shat her brains out and we still tease each other about it.