Take this light heartedly…it was stated that it is probably a rumour! Quoted from RADIO 1 Entertainment news:
“Strangely enough, I can’t get any confirmation on the story that Janet Jackson wants Justin Timberlake to father her child! It’s a hilarious story and probably not true but here goes anyway: Justin was apparantely gutted when his brief fling with Janet finished. But she rang him up recently and asked him to father a kid for her! Justin’s mum (interfering mother!) apparnately sent Janet letters warning her off him and threatened to claw her eyes out saying “She’s just using him as a sex toy and treating him as a piece of meat!”. Justing obviously isn’t complaining at all! He’s supposedly smitted and would jump at the chance (and in the sack) straight away!