has joked that he will be ‘real p****d’ if brother Travis is revealed to have committed a monstrous  in ‘s ‘Grotesquerie’ horror show.

 City Chiefs star Travis is  in the chilling new FX series, which finally premiered on Wednesday night.

Fans have already been left wincing at the program’s incredibly gory and gruesome nature, with the first episode focusing on Detective Lois Tryon (Niecy Nash-Betts) and her search for a serial killer accused of sickening crimes – such as ‘boiling’ a young baby.

In light of that disturbing revelation, Jason admitted he will not be best pleased if Travis’ character turns out to be the serial killer in question.

The  legend posted during Wednesday night’s premiere: ‘If Travis boiled a baby, I’m gonna be real p****d #Grotesquerie’.

Jason Kelce has joked that he will be ‘real p****d’ if brother Travis is revealed to have committed a monstrous crime in Ryan Murphy’s ‘Grotesquerie’ horror show

Jason admitted he will not be best pleased if his brother’s character turns out to be a serial killer accused of a monstrous crime

Fans saw the funny side of Kelce’s reaction to the Grotesquerie premiere, with one replying: ‘There goes any chance of Uncle Travis babysitting the girls’.

Another posted: ‘oh my god this is an all-time tweet’.

‘Jason, don’t put that in the universe,’ joked a third.

A fourth put: ‘This randomly popped up on my feed. I’m not mad. But I do have questions.’

While one joked about Travis’ famous nickname: ‘cut him some slack, you should have expected he was a killa’.

Speaking ahead of the Grotesquerie launch on their New Heights podcast, Jason told Travis that he was planning to sit down with his daughters – Wyatt, Elliotte, and Bennett – to watch the first episode.

 ‘Are you the bad guy? Are you the killer?’, he asked his brother.

‘Can’t tell you. You’re going to have to watch Jason,’ Travis replied.

‘Make sure you have the girls watch this. They are going to love this show.’

Travis is making his acting debut in the chilling new FX series, which finally premiered on Wednesday night

Jason told his brother: ‘Listen. Kylie (his wife) would murder me. I am going to have the girls. Is there a warning or is there a lot of surprises?’

Travis quickly shut down the prospect of his nieces watching him, replying: ‘Dude! That was completely a joke. Do not let the girls watch this show.

‘I don’t know if they’ll even like understand what’s going on in the show. It’s very advanced for toddlers.’

Travis is starring in the horror fiction series alongside Nash-Betts, Courtney B. Vance, , Micaela Diamond, Nicholas Alexander Chavez, and Raven Goodwin.

The NFL tight end’s acting debut comes amid his underwhelming start to the season with the Chiefs, which has led to question marks over his future in football.