What is the Jewish law on homosexual acts not explicitly prohibited in the Torah?

Question

(Preface: I have read through a few of the Gay themed questions on this site and didn't find any that addressed this question. This question is somewhat similar in nature but doesn't have an answer.)

The cardinal sin of homosexuality in the Torah is the act of anal sex. But what about other forms of sexual acts with another man? How are they classed? Is it the same as same-sex prohibitions?

In this article the writer asks: "What options are available for two Jewish gay men to have a physical relationship?" And goes over some conjectures.

Additionally, I'd like to know what about a Jew who has homosexual relations with a non-Jew? (This would eliminate the sin of causing another Jew to sin.)

Answer 1

As discussed with other prohibited relations, Lev. 18:6 says "don't get close to uncovering nakedness." Maimonides thus rules that acts involving other body parts are Biblically prohibited (though the theoretical punishment would be lashes, not execution).

Answer 2

There are two prohibitions you refer to:

1. Any acts of affection, temptation and stimulation are forbidden; that would include hugs, kisses etc (see Shalom's answer).

2. Wasting seed - if any activity leads to discharge it is also forbidden (see pron).

AFAIK, there are no differences for this prohibition in having relations with a Jew or a non-Jew as the verse says "ואת זכר לא תשכב משכבי אשה תועבה היא" - namely a male, not "your fellow" or "your brother", just any male.