Thank you for query.Warts can spread form skin to skin contact or as std.but not all touch and contacts can transmit.it depends on duration of contact ,the viral load inserted when in contact and and the immune status of person.also the incubation period of warts can vary from months to year.The pap can come negative even with wart as it may be at different site.Treat the partner for warts if any.You can get back directly to me for any clarifications with the photos.Dr Bharatesh D Basti Dermatologist and Venereologist.