Aldridge not the father of Spears' baby?

Casey Aldridge is not the father of Jamie Lynn Spears' unborn child, according to reports.

Britney Spears' 16-year-old sister announced last week that she is pregnant with her boyfriend Aldridge's baby.

But it has been alleged that the 19-year-old is being paid to act as a cover-up for the real father, who could face charges because he is an older man.

US magazine Star suggested that Jamie Lynn and Aldridge have an on-off relationship and that the real dad could work on Spears' US television show Zoey 101.

An insider claimed: "Casey is being paid off to be the family's fall guy while the real father remains unidentified. The man many suspect is the father, however, would face charges and probably prison time if he were to come forward and admit he had sex with her."