Sucking a Man's Penis
Scholars have said that seeing oneself sucking a human or animal's penis in a dream may indicate that the suckler lives off the reputation and name of the owner of the penis. It may also signify obtaining limited relief and minor wealth, perhaps a humble reputation. Treating a woman's vulva without a penis is interpreted similarly, denoting incomplete or weak relief.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam
Note: These are traditional scholarly interpretations (ijtihad) drawn from a specific classical source — not a binding religious ruling, fortune-telling, or a prediction of the future.