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Last night on 20/20's Inside the Bachelor: Stories Behind the Rose special, the show's exec producer gabbed that Bachelor Bob was the hunk who spent the most time between the sheets with eager contestants!

"Bob had just come off the Trista season of the Bachelorette so his popularity was enormous," producer Mike Fleiss explained. "Women were in love with him right from the start."

Whereas the average bachelor would bag about four babes per show, Fleiss joked that Guiney was with "5 1/2" women.

Guiney was originally a contender on the first Bachelorette, where his sense of humor made him popular with the audience (but not Trista Sutter who eventually chose now-hubby Ryan) and was brought back at The Bachelor for season four of the popular show. Mortgage broker Estella Gardinier won the final rose, but she and Guiney broke up soon after the show aired.

Bob's now single after splitting with his actress-wife of five years, Rebecca Budig. If the show ever were to have a do over, we bet Bob would jump at the chance to do over a new slate of contestants!