No Earthly person knows.  It is unknown. The Scriptures do not state either way.

However, Angels were able to come to Earth and have sex with human females, therefore, it is possible for beings in Heaven to have [participate] in sex.  It will be possible for the saved [in Glorified Bodies] to have sex, it is unknown if they will desire to do so or actually do so either in Heaven or on the New Earth Heaven.

It is also known that sex was to go with marriage, not outside of marriage, and there will be no marriage in Heaven.  We will [as a Church member] be in the family of God with Jesus as the HEAD OF THE CHURCH and the KING OF KINGS.

The word “marriage” is used by Jesus in the Bible [Marriage Feast, the Church will be married to Jesus, and God is married to Jerusalem as well as there will be no marriage in Heaven with woman given or received by man].  However, in the sense that God or Jesus use the word marry [Marriage Feast, the Church will be married to Jesus, and God is married to Jerusalem] marriage means “to join with” and does not have the same connotation as marriage on Earth now or in the past has.  Those in Heaven are under God’s authority and, under God – Jesus’ authority. Those in Heaven have a close relationship with God and Jesus as well as the Holy Spirit.

dictionary meaning: marry:

• to combine suitably or agreeably; blend
• to unite closely or intimately
• to fit together or align (two things); join