(Cover) - EN Showbiz - Kimberly Stewart is hankering after a relationship with Benicio del Toro, it's being reported.

The 32-year-old gave birth to their daughter Delilah last Sunday but the pair have never officially been a couple which Kimberly regrets, according to RadarOnline.

The duo were only seeing each other casually for a month before Kimberly, who is rocker Rod Stewart's daughter, became pregnant much to everyone's surprise.

"Kim and Benicio still see each other and talk for the sake of the baby, but it's not romantic and Kim wishes it were," the insider told the site.

"They weren't really ever dating to begin with, just sort of hooking up for a month, then boom she was pregnant."

The source added that Kimberly is already a wonderful mother to the newborn although it was not an easy labour.

"It was a tough birth for Kim, but she's a tough cookie," the source added. "I think having any more children is the last thing on her mind right now!"

Baby Delilah is the first child for both Kim and Benicio, who won an Oscar in 2001 for his role in Traffic.

He has apparently said that he is too busy for a girlfriend.

"Benicio is the father and very supportive," his spokesperson said back in April before making clear that the actor was not committed to Kimberly.

"Although [he and Kimberly] are not a couple, they are looking forward to the arrival of the baby." (C) Cover Media