It's just a thong at twilight as Walford girls rummage through the knicker drawer at a lingerie party in EastEnders (BBC1).

They linger longingly over lingerie at Preeti Please's birthday celebrations. Some people have a cake with candles in it, she has naughty knickers.

Max, who's already been in Stacey Slater's pants, finds himself thrown into her arms by his trusting wife Tanya after Stacey gets drunk at the party and needs escorting home. Tanya's not worried that her husband will stray (the poor, deluded fool) because she doesn't think he'd bother with son Bradley's former girlfriend.

Max likes keeping it in the family but what's good for the goose (him) isn't necessarily good for the gander (Tanya). He turns into Mad Max when he suspects that Sean Slater, Stacey's brother, is trying to get Tanya's knickers in a twist.

Suspicions are roused, as they say, when Sean finds Tanya's purse and nips over to the Booty salon to return it - and have a quick flirt with Tempting Tanya. He even offers to fix her electricity, or perhaps he meant something else when he said: "Shall I plug it in?"

When Max fails to turn up at his marriage counselling session, Tanya turns to Sean as a shoulder to cry on. Max turns into Mad Max at the thought that his wife is playing away. When he hears Sean have a flirtatious conversation with someone on his mobile, like a one-legged hop skip and jump competition he leaps to the wrong conclusion.

He dashes round to Booty in the expectation of finding Sean being given one - a massage - by Tanya. Instead he finds Sean in his knickers, not Tanya's, and romancing Chelsea Fox. Violence ensues, well it is Albert Square.

Barmaid Michelle receives a shock in Coronation Street (ITV1). No, not a marriage proposal from little Chesney but from Sonny Side Up, the bisexual businessman who likes both Y-fronts and lacy thongs.

He gets down on one knee and pops the question (and splits his trousers, but that's another story). Michelle accepts, only to have her hopes dashed by jealous Steve's revelation that Sonny Side Up has been batting for the other side with barman Camp Sean. Asking Michelle to marry him is his way of assuaging his guilt over sleeping (and other things) with Sean. She should know something's up when he puts a napkin ring not an engagement ring on her finger.

Round at the Grimshaws, builder Jason the Plank finally begins to bond with baby Holly, the child he didn't know he had. He even looks after her alone, teaching her how to knock up a chest of drawers in no time at all.

Why has Rosemary King painted her face like a cat? Whatever the reason, the police come calling, although surely impersonating a pussy isn't a criminal offence? The cops in Emmerdale (ITV1) are still investigating the Christmas Day defenestration of Tom, the king of Kings, while widow Rosemary is taking charge of his business affairs.

She really shouldn't have annoyed daughter-in-law Perdy, who promptly informs the police that Rosemary's first husband died in suspicious circumstances leaving her a small fortune. Clearly the same thing happening again must give pause for thought, although the Emmerdale plods couldn't catch cold let alone a murderer.

Still in the King camp, son Jimmy's riddle involves his late father's former lover Carrie and his secret half-sister (although no one's sure which half).

He accuses her of being a money-grabbing tart and she responds by thwacking him round the chops. It can only mean only thing - they'll end up in bed together before the end of the month.