You are absolutely correct.. and this is intensified by the popular culture we experience which associates food (and by inference the utensils we use to eat food with) and sex. Case in point, the "spooning" position, which as we all know is exquisite for the woman and frustrating for the man, lying just above "can't we just talk" on the frustrat-o-meter... since the act of using the spoon frequently adds to a womans hips (hence the popularly named "mommy region") the association is intuitively obvious.
"Forking" has much more manly undertones, and is characterized in the same level as "laying pipe" although since that is not silverware related it has no place in this thesis. Forking is therefore a predominately male activity, hence the popular "fork in the road" saying being utilized since males predominately do the driving and thus are required to select which fork to take.
Sport-Forking or "Spork'ing" is an activity enjoyed by both males and females and usually lusted after by available members of both species. Although Sporking tends to decline in females in direct syncronization to the ravages of gravity. In males this proclivity is not realized, resulting in the gap in desire popularly known as the "Viagra Meatloaf" or "Ciallis Sticky-Bun".
Contrary to popular belief, the knife, although most closely associated as a phallic symbol, has not enetered the popular lexicon as such, mainly due to the instinctive reaction males experience when subjected to the thought of the "Bobbit" syndrom. The violence of the reaction undermines the attempt to link the knife to the phallus, resulting in the various attempts at metaphors of sex using the knife being doomed to failure. Popular sayings such as "knife dick" and "Spread her 'I cant believe its not butter' with my knife" have had little success in pentetrating the collective consciousnes.
Despite the failure of the knife, as a general rule, food is still akin to sex in most slang dialogs. "Blowing on your food" and "eating out" are obvious examples, as are the more obscure references to "candy-cane" and "Rocky Mountain Oysters".
In light of these parallelisms, can the vegetarian be considered a virgin? Can a person who uses the knife in one hand and the fork in the other be considered bisexual? Can chocolate really be better than sex? The answers are there, right on your dinner plate and in bed.