I would invite Ben.... cos I'm old fashioned, and  think he would be polite, have good manners, and be interesting to talk to....

Probably Shabby, so that I could drop the cup in her lap. I'm joking of course.

Same as Baz and for the same reasons.  I'm a total sucker for good manners & good presentation (hark at me, sound like I'm from the court of Queen Victoria) Ideas above my station...

Should that not read cauldron

Just Corin and Josie, at the moment.

I would have Corin to tea and have a good laugh

  Ditto Fairfax

Now that I know Mario quite likes taking all his clothes off (not to shock but for fun) he would be tempting.
But I'll be good and say Ben.

That monk guy.  I expect there is toothsome marbling of his sirloin.  

Definitely not Ife - the conversation would be such a strain.

Brisket, wash your moth out

Ben....because if he came round I would be able to get out my best china and not have the urine extracted.....I could also indulge my love of cucumber sarnies and dainty cakes....plus he seems to have lovely manners and, I suspect, a rather norty mind lurks under that odd hair!!!!

See Brisket....I was tempted by Mario...maybe he could be my 'Butler in the Buff'.....I'm sure he wouldn't mind being nekkid whilst he serves Ben and myself tea!!!!

Ooh Mrs B  what a wonderful idea. I wish I'd thought of that! 

You can always count on Mrs B to find away Brisket

Would there be dunking involved?

Corin, she wouldn't try to put on any airs and graces and I love someone who can take the piss out of themselves 

Mebbe....

Brisket....you are more than welcome to join Ben and myself for tea...served by Mario in the buff....I don't mnd sharing!!
Obviously.....if I was allowed to have Rex round for tea then no-one else would be allowed anywhere near the place....and he would DEFINATELY end up nekkid....

 Goes without saying Mrs B

Rachael, Ben, Josie and Corin.

Does it have to be a housemate from this series? If so, none of them because I haven't watched it. But if I could chose someone from a previous BB it would naturally be John McCririck.  I would peel him grapes and let him nibble on my petits fours

Nathan coz he'd do the cooking.

The only time in my life that I heaved and had to run to the bathroom to get sick was watching the aforemention beast pick and eat the contents of his nose. He is gross

I think you're just saying that to cover up the fact that you really find him irresistable.  You can't fool me

Shabby cos I like hats 

I bet you wouldn't be able to keep your hands off him either

Ben, simply because he would admire my tea set and pass nice comments on my cupcakes

Corin, because she'd be a hoot.

Ditto Deman...though I do have a friend very much like her...looks wise as well, lol...she's a bubbly girl with a heart of gold as well

Corin, because shes a sweetheart!

I would have tea with Josie and Corin.
Nathan could stay in the kitchen, cooking some fancies.
JJ would be in a sound-proofed box, in the corner, and I'd keep giving him that look.

I'd invite them all over and save on my leccy bills by watching them argue/bitch/play bar games etc etc etc..........

None of this lot! it's so strange for me, Usually within the first few days I kinda know which HM I really like, this time round I find this lot all a bit BLAH....

Can I say my fave from last year? My darling sexy hairy Iranian Prince of Persia, Siavash....Trust me, we wouldn't just be drinking tea...

I'd have Josie, but would coat her fingers/thumbs with bitter aloes to keep them out of her mouth.  So who is the OP's choice of teatime chum then?