Reports that Pippa Middleton accepted a marriage proposal from her boyfriend, Nico Jackson, may have been premature. On Wednesday, Us Weekly reported that Duchess Kate's sister, Pippa, said "yes" to her stockbroker beau when he asked for her hand during a trip to India. On Thursday, however, a source told People magazine that the story "is not true." GossipCop's sources would also not confirm the engagement. Pippa, whose left ring finger has not been spotted since the story surfaced, has not commented either way.