Detachment and boredom were very nearly concealed Monday when 1.5 ounces of semen were ejaculated into the face of adult-film star Brittany Silk, 20, on the set of Butt-Fuck Sluts Go Nuts Vol. 31, forthcoming from Mustang Entertainment. 'Brittany really did a great job with that scene,' director Rodney Campos said. 'She practically made it look like she loved having [co-star] Rick [Steed] shoot his hot, steaming load all over her face.' 