(Cover) - EN Showbiz - Khlo Kardashian is planning to "do a payback" on sister Kim by throwing her a sex-filled bachelorette party.

Kim is engaged to basketball star Kris Humphries, who popped the question after just six months of dating. The pair are yet to officially confirm a wedding date although it's thought they will tie the knot in the summer.

Her sisters Khlo and Kourtney will be maids of honour, and so will have to organise the festivities to celebrate Kim's last days as a single woman. Khlo wed Lamar Odom in 2009 and still hasn't forgiven Kim for the bash which was thrown for her.

"I had the worst bachelorette party," she laughed. "Like it wasn't sexy at all, so I might just do a payback for Kim... Because Kim does not like what she gave me, like penis straws and a little go-go dancer. Kim would cringe if I did that for her, so I might do that just to see what happens."

Khlo added she is yet to buy Kim and Kris an engagement gift, but has no plans to change that. Kourtney wondered if they should have clubbed together to get a present, but Khlo reasoned no one bothered for her so there was no need.

She is looking forward to her sister's wedding though despite being unhappy with the title she'll have on the big day.

"Someone told me I'm married so I'm a Matron of Honour but I hate Matron," she complained to E! Online. "That's so old and not sexy."

Khlo added Kim is yet to pick her wedding gown, but she's hoping she goes for a Vera Wang dress as it would be the "perfect fit". (C) Cover Media