Chewing on such seeds is quiet the mouthful! Care is needed or one can choke.

A couple of years ago I recall asking a question of this nature, since then I have more realizations about it. Unfulfilled sex desires can also become expressed as reproductive urges.

This energy I feel acts as support energy in the form of impetus or drive element, and there exist several such subtle support energy elements in the line of in the practice. Some are by definition positive others negative and some like this in question vary.

This support is also inherent and basal to material creation; it is nearly all-pervasive. And, as the entity evolves up the tree and so nature enthuses the sense of gratification and pleasure into that energy, this allows beings with apparent variegated set of choices and alternatives to actually want to procreate.  In the human form this choices can center on the pleasure sensing element at the expense of other uses.

Particularly when such pleasures become exacerbated to include pornography or other sexual depravities, then I must realize that these do much to pile up on my sub-conscious sex desires for lives to come.

It is the cherry on the icing of the presentations of kundalini. For the observing one it is counterproductive to pop that cherry and keep doing it. Initially it may be necessary to observe the sense pleasure or that of gratification.

Most endeavors are insipid, when that sense of gratification is absent. Many times the absence of this sense can be cause for depression. For those who are pleasure prone there is a co-dependence between the sense of sensory pleasures and sex desires, therefore there will be an addiction to a certain expression of those desires.  

Once it has become possible to approach the issue with sufficient openness and realization then, this energy is a definite participating impetus in the practice. But as these are subject to ebb and flow and even cycles one cannot depend on them in majority.

This channeling of these desires without mixing them with the lust factor, just in their neutral form is the risk free and advantageous way, if and when possible.