When he's not singing — or honkin' on bobo — you may find Aerosmith frontman Steven Tyler suggestively humping a fan onstage during one of the band's performances ... just as he did at a recent concert.

We should clarify that it is an actual fan, as in a powered machine used to move air. But although the singer's gyrating motions surely aroused some concertgoers, not everyone was pleased with the titillating display subsequently shared by the rocker on Instagram. Least of all Tyler's fashion model daughter Mia Tyler, who simply wrote "Ew" as a response to her father's onstage humping in the attendant comments section. Watch the video, and see Mia Tyler's disgusted reply, down toward the bottom of this post.

Yet Mia isn't the only Tyler daughter to protest daddy's vivacious actions. Affirming Mia's "Ew" admonishment to Steven's fan humping, her half-sister, Chelsea Tyler Foster, wrote, "my thoughts exactly."

"CLEARLY... I HAVE THE BEST FANS!" is the witty caption supplied by the singer of the clip that shows the Aerosmith icon straddle the cooling apparatus before seductively leaning in for not one, not two, but six total hip thrusts of scintillating proportions. While still in the evocative pose, the musician then begins bouncing up and down, as if to simulate even more sensuality to the captivated crowd.

Perhaps the singer needed to cool off his crotch while performing.

Aerosmith plan to broaden their "Deuces Are Wild" Las Vegas residency with concerts in the coming year after first launching this spring. Not to leave their human fans wanting, the band recently brought the residency to the East Coast for a spate of tour dates. See the act's upcoming concerts here.

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