Are unnatural sexual acts moral to use as foreplay, prior to an act of natural marital relations open to life?Roman Catholic theologian and Bible translator, Ronald L. Conte Jr., has the answer:
This all-too-common question asks whether married couples might use various types of unnatural sexual acts — manual sexual acts (masturbation of self or spouse, or various devices used in the same way), or oral sexual acts, or anal sexual acts — in the context of a subsequent, concomitant, or prior act of natural marital relations open to life.So, I guess defunding Planned Parenthood's contraceptive candy store is just a first step. We have much more work to do.
So my answer to the above question is that neither the intention (purpose) to use an act as foreplay, nor any circumstances whatsoever, can justify a sexual act that is intrinsically evil. Unnatural sexual acts are intrinsically evil due to the deprivation of the procreative and unitive meanings. And the presence or absence of sexual climax does not change the moral object. An unnatural sexual act with sexual climax has the same evil moral object as an unnatural sexual act without sexual climax. The moral object has not changed, and so the moral nature of the act has not changed; it remains intrinsically evil. Therefore, no type of unnatural sexual act, with or without climax, can be used by a married couple at any time, regardless of whether or when an act of natural marital relations occurs.