Jennifer Garner Says Ben Affleck Has "Wonder Sperm"

By:OK! Staff

Sept. 26 2012, Published 7:27 a.m. ET

Ever wonder why Jennifer Garner always seems to be pregnant?

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Us too, and thankfully Ellen DeGeneres got the Butter actress to open up about hubby Ben Affleck's, um, special babymaking gift.

"The last time I saw you, you were very, very pregnant," Ellen remarked.

Jen then quipped that her being pregnant "could have been anytime in the last seven years of my life."

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When Ellen asked if her third child, Samuel, was to be her last, the bubbly actress shrugged her shoulders.

“I plan to be done,” she said. “But my husband is kind of a wonder sperm kind of guy.”

A "wonder sperm kind of a guy"?

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“You just have a look at him, you can see it. Anyway…," she said with a laugh.

Jennifer is promoting her latest flick, Butter, about the fast-paced world of butter carving. While the movie takes place in Iowa and appears wholesome on the surface, the audience soon finds out that Jen's character's husband (played by Ty Burrell) is having an affair with a prostitute (Olivia Wilde).